Medium MCQ +4 / -1 PYQ · JEE Mains 2022

Using very little soap while washing clothes, does not serve the purpose of cleaning of clothes, because :

  1. A soap particles remain floating in water as ions.
  2. B the hydrophobic part of soap is not able to take away grease.
  3. C the micelles are not formed due to concentration of soap, below its CMC value. Correct answer
  4. D colloidal structure of soap in water is completely disturbed.

Solution

The little amount of using soap while washing clothes, does not serve the purpose of cleaning of clothes because the micelles are not formed due to the low concentration of soap as it is below CMC.

About this question

Subject: Chemistry · Chapter: Surface Chemistry · Topic: Adsorption

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